:root {
  color-scheme: light;
  --bg: #f7f6f2;
  --surface: #ffffff;
  --text: #1f2328;
  --muted: #5f6b76;
  --border: #d9dde3;
  --link: #005ea8;
  --link-hover: #00467d;
  --shadow: 0 10px 24px rgba(23, 36, 50, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  background:
    radial-gradient(circle at 10% 0%, rgba(173, 202, 255, 0.26), transparent 40%),
    radial-gradient(circle at 90% 100%, rgba(178, 223, 203, 0.28), transparent 48%),
    var(--bg);
  color: var(--text);
  line-height: 1.6;
}

main {
  max-width: 920px;
  margin: 32px auto;
  padding: 0 16px 32px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow);
  padding: 28px;
}

h1,
h2,
h3 {
  line-height: 1.3;
  margin: 0 0 12px;
  color: #0f1720;
}

h1 {
  font-size: clamp(1.5rem, 2.4vw, 2rem);
}

h2 {
  font-size: clamp(1.1rem, 1.8vw, 1.35rem);
  margin-top: 24px;
}

h3 {
  font-size: 1.05rem;
  margin-top: 20px;
}

p {
  margin: 0 0 14px;
}

.effective-date {
  font-weight: 600;
  color: #253344;
}

nav {
  margin: 0 0 20px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #f9fbfd;
}

nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
}

nav li {
  margin: 0;
}

a {
  color: var(--link);
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

a:hover,
a:focus-visible {
  color: var(--link-hover);
}

ul {
  margin: 0 0 16px 22px;
  padding: 0;
}

ol {
  margin: 0 0 16px 22px;
  padding: 0;
}

footer {
  margin-top: 28px;
  color: var(--muted);
  font-size: 0.95rem;
}

@media (max-width: 700px) {
  main {
    margin: 18px auto;
    padding: 0 12px 20px;
  }

  .card {
    padding: 20px;
  }
}